Chlorophyll A at a glance
| Property | Value |
|---|
| Molar mass | 893.509 g/mol |
|---|
| Molecular weight | 893.509 u |
|---|
| Chemical formula | C55H72MgN4O5 |
|---|
| Monoisotopic mass | 892.535313 u |
|---|
| CAS number | 479-61-8 |
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| PubChem CID | 12085802 |
|---|
How to calculate the molar mass of chlorophyll a
55 × 12.011 + 72 × 1.008 + 1 × 24.305 + 4 × 14.007 + 5 × 15.999 = 893.509 g/mol
- Count the atoms in C55H72MgN4O5: C 55, H 72, Mg 1, N 4, O 5.
- Multiply each atom count by the atomic weight of the element.
- Add the results to get 893.509 g/mol.
Elemental composition of chlorophyll a
| Element | Atoms | Atomic weight | Mass (g/mol) | Mass % |
|---|
| C Carbon | 55 | 12.011 | 660.605 | 73.934% |
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| H Hydrogen | 72 | 1.008 | 72.576 | 8.1226% |
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| Mg Magnesium | 1 | 24.305 | 24.305 | 2.7202% |
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| N Nitrogen | 4 | 14.007 | 56.028 | 6.2706% |
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| O Oxygen | 5 | 15.999 | 79.995 | 8.9529% |
|---|
Grams and moles of chlorophyll a
| Amount | Equals |
|---|
| 1 g | 0.0011192 mol |
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| 10 g | 0.011192 mol |
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| 100 g | 0.11192 mol |
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| 0.1 mol | 89.351 g |
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| 1 mol | 893.51 g |
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| 1 g, in particles | 6.7399 × 10^20 |
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